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4409844 |
Flow rate measuring device
A flow rate measuring device for use with liquids or appropriate dry materials, comprising a receptacle calibrated to indicate flow rate (e.g. gallons per minute) rather than static volume, and...
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4389886 |
Calibrating unit
A calibrating unit for calibrating infusion pumps and the like includes a drop sensor which operates to generate electrical signals in response to the passage of drops through an intravenous set....
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4387591 |
Method for testing fluid control valves
A test apparatus for determining the operable condition of fuel level conl valves is presented. A sensor is connected to a fuel line for delivery of a test sample of fuel through the fuel line to a...
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4387589 |
Test stand
A test stand (10) having a principal use for testing a fuel pump and associated governor (24), has a drive shaft (16), an inertial weight (30) operatively associated therewith, and apparatus (56)...
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4384591 |
Test in place valve and valve fitting
A test in place poppet valve and fitting assembly having a minimal air volume internal configuration is provided for attaching a portable hydraulic test system to a snubber internal hydraulic line....
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4381663 |
Fluid oscillation materials testing apparatus and methods
Apparatus and methods for durability (fatigue) testing of various samples (materials, valves, components and other objects) involves use of a test fixture for clamping a sample to be tested in a...
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4380166 |
Testing apparatus for a dual pressure indicator and control unit for pasteurization equipment
The testing apparatus comprises two pressure regulators, two pressure gauges or an optional dual pressure gauge, and valve mechanism. In one embodiment the valve mechanism comprises two valves,...
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4380170 |
Process for the chemical plotting of boundary layer flows, and chemigraphy materials for the practice thereof
The chemical plotting of boundary layer flows in liquids with the use of uncompacted, coated, anodically oxidized aluminum surfaces is effected using a colored or uncolored liquid or a coating or...
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4368638 |
Test stand for testing hydraulic devices
A test stand for testing hydraulic devices such as hydraulic pumps and motors, either separately or jointly. The test stand is comprised of a primary power source which acts in combination with a...
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4349885 |
Set pressure measuring system
A device for measuring the set pressure of a safety valve coupled to a pressure line, where the valve includes a springloaded closure element which is normally biased to close a port of the...
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4337649 |
Apparatus for determining end-play in a torque converter
Apparatus for determining end-play in a torque converter without draining oil from the torque converter and also useful for measuring end-play of same unit at salvage yards. The apparatus comprises...
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4331262 |
Calibratable automatic fluid dispenser
A fluid dispenser pumps fluid in increments. The dispenser includes a computer which, on command, determines the volume of fluid dispensed per increment, the determined value constituting a...
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4322972 |
Method and apparatus for flow-rate verification and calibration
The instant invention provides a method and apparatus for the verification and calibration of pumping rates in systems having a volumetric pump drawing fluid from a tank. An effluent valve is...
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4311436 |
Fluid pressure and velocity sensing apparatus
Apparatus for measuring fluid pressure and velocity, and in particular for maintaining an aspirator air velocity constant under varying atmospheric conditions. A precisely controlled air velocity...
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4305450 |
Apparatus for checking the operation of a plurality of liquid sprays in a continuous casting apparatus
Apparatus for continuous casting has pairs of rolls defining a path for the solidifying slab of steel. Between the rolls on each side are rows of spray nozzles. To check the operation of the sprays...
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4294109 |
Test apparatus for hydraulic valve
This disclosure relates to apparatus for testing a hydraulic assembly. The assembly includes a member having an orifice formed through a wall thereof and a valve member spring urged toward one side...
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4267721 |
Respiratory analyzer
An apparatus for testing and calibrating respiratory therapy equipment. A single compact unit is pre-programmed to automatically valve in each selected test, and display pertinent parameters in a...
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4255967 |
Method and apparatus for testing the setting of a valve
A method and apparatus for testing the setting of a valve (particularly a safety valve mounted on a vessel) comprising a valve member biassed towards a valve seat, employs a pulling device which is...
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4244209 |
Testing of fluidic devices
Method and apparatus for the testing of fluidic devices. An adaptor that provides a temporary interface with such a device is affixed to it and used to direct a gaseous medium into the device for...
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4235103 |
Aeroload torque simulator
The aeroload torque simulator provides torques for either statically or dmically loading the output shaft of a power servo system such as a missile fin control system. It simulates the aerodynamic...
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4211110 |
Method and apparatus for certifying the output torque curve of a hydraulic hoist for use in dump body applications
Disclosed herein is a method and test apparatus for use in determining and certifying hoist compliance with one of several minimum body and payload torque requirement curves, which curves establish...
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4203321 |
Method and apparatus for testing hydraulic and pneumatic systems
This disclosure deals with apparatus for and a method of testing a plurality of hydraulic and/or pneumatic systems. Each such system has a hose connected in it and the hose terminates in a valved...
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4202209 |
Shock suppressor valve test system and method
A test system and method for in line testing of shock suppressor shut-off valves is provided. Vacuum and fluid canisters are mounted to a backpack that can be carried by maintenance personnel to...
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4196758 |
Apparatus for testing the automatically operating control of a pump
A control device for automatically operating a bilge pump is located in a receptacle having, in its side wall, holes at a level below the predetermined level of liquid at which the control device...
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4181017 |
Fault detecting apparatus for fluid pressure systems
A fluid pressure operated system adapted to identify malfunctioning components in the system with pressure and flow indicating devices incorporated in the system to continuously monitor fluid...
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4181016 |
Process and apparatus for testing hydraulic control systems
A method and apparatus for simultaneous testing of one or more hydraulic control systems, each system having a hydraulic pressure pump whose high-pressure end is connected to a first tank in which...
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4171638 |
System for measuring pulsating fluid flow
A system for precisely measuring the amount of fluid discharged by a pulsating fluid flow device such as a pump, or the like. The discharged fluid is collected in a container and the amount...
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4152932 |
Fuel injection valves and their manufacture
A fixture and method is disclosed for assembling and standardizing embodiments of fuel injection valves of the outward opening type and in particular those valves having a retainer connection...
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4141243 |
Apparatus for testing the volumetric output of fuel injector system components
The volumetric output of fuel injectors is rapidly and accurately measured y accumulating in first and second counters respectively, a count of pulses generated as a function of the strokes made by...
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4134293 |
Pressure differential indicating apparatus for a hydraulic measuring bridge and its associated measuring piston
The invention relates to pressure differential indicating apparatus in a hydraulic measuring bridge which includes a measuring chamber that is provided with a valve means that emits a throughflow...
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4131010 |
Hydraulic test set
In-place testing of hydraulic shock suppressors is accomplished by apparatus that selectively pumps hydraulic fluid into the shock suppressor cavities. The rate and direction of flow of the fluid...
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4126038 |
Testing apparatus for hydraulic circuits
A testing apparatus for testing the hydraulic circuits of a vehicle having at least two independent hydraulic circuits including a plurality of supplies conduits, one for each independent hydraulic...
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4114426 |
Liquid volumetric line leak testing apparatus
The present apparatus includes a readily portable carrying case holding all of the equipment needed for detecting a leak in the gasoline line between an above-ground dispensing apparatus and an...
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4088017 |
Clothes dryer air flow test device and method
A device and method for checking the adequacy of the rate of air flow in a rotating clothes dryer drum having air flow passing through perforations in the rear wall of the drum into the interior of...
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4081997 |
Clothes dryer air flow test device and method
An improved device and method for checking the adequacy of the rate of air flow in a rotating clothes dryer drum having air flow passing through a first centrally disposed set of perforations and a...
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4073304 |
System for calibrating a pump
A system for calibrating the flow rate of a pump, and especially designed for a pump which is normally used in a system to blend highly vaporous and odorous fluids, in which the blending fluid...
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4069702 |
Method and apparatus for testing the run-out and recoil control systems of a gun
A method and apparatus for testing and evaluating the runout and recoil control systems for a gun in which a body having a mass representative of the mass of the moving parts of the gun is...
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4055994 |
Method and a device for detecting the stall condition of an axial flow fan or compressor
The stall condition occurring in the unstable working range of an axial flow fan or compressor arranged in an air duct is detected by measuring the pressure difference between the total air...
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4029122 |
Apparatus and method for determining friction forces in position modulated valves
Apparatus and method for indicating whether friction forces within a position modulating valve are approaching a predetermined friction value. The invention includes pressure detectors which...
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4025238 |
Apparatus for eliminating the effects of cavitation in a main pump
Apparatus for eliminating cavitation in a main pump in which the rotor of a supercharging pump is connected to the rotor of the main pump such that the latter rotor drives the rotor of the...
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4002065 |
Steam turbine valve positioning system having throttle valve test capability
A digital electrohydraulic steam turbine control system that generates a feedforward total steam flow demand signal to position the governor valves singly or sequentially in accordance with a...
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3975944 |
Hydrostatic testing and recording apparatus
Apparatus for hydrostatically testing hydraulic equipment and/or for recording the results of the hydrostatic test. The apparatus includes a reservoir for hydraulic fluid, supply means for...
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3942375 |
Method and means for testing hydraulic pump
The testing method and means of the present invention utilizes a conventional dynamometer for testing a hydraulic pump. The dynamometer is used to mechanically drive the pump and the hydraulic...
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3939688 |
Volumetric calibration
A completely enclosed system for volumetric calibration wherein timed valves divert liquid components into separate metering tubes for observation. Pistons or separators in the metering tubes are...
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3929014 |
Periodically actuated pneumatic ratemeter
The pumping rate of an oil well pump or other recurring event may be determined by monitoring air impulses on a line wherein the air impulses correspond to the pump strokes. Fluidic logic circuitry...
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3921435 |
Apparatus for detecting valve failure in a reciprocating pump
A system for detecting early failure of valves employed in reciprocating pump includes a temperature sensing element positioned on each valve or on the pump in the immediate vicinity of each valve,...
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3911725 |
Method of operating life testing hydraulic units with linear-motion output member
The invention relates to methods of operating life testing hydraulic units with linear-motion output member. The method consists in the following: Delivery pressure and temperature maximum...
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3910216 |
Hydrofoil cavitation sensing and control apparatus
A cavitation detection and control system for controlling the movement of a hydrofoil within a safe, cavitation-free, acceleration and speed region. The system utilizes transducers, associated with...
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3890836 |
Automatic temperature control system analyzer
An automatic temperature control system analyzer especially suitable as an analyzer to accurately analyze the component parts of a plurality of different automatic air conditioner systems in an...
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3872723 |
METHOD AND APPARATUS FOR MEASURING THE AVERAGE LIQUID FLOW OF A RECIPROCATORY PUMP
A liquid storage means and a flow passage resistant means are connected between a reciprocatory pump and the input to a liquid chromatography system. The pressure variations caused by the pumping...
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